visual3d:documentation:modeling:segments:v3d_composite_pelvis
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visual3d:documentation:modeling:segments:v3d_composite_pelvis [2025/04/14 15:54] – wikisysop | visual3d:documentation:modeling:segments:v3d_composite_pelvis [2025/04/14 15:58] (current) – wikisysop | ||
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- | **This pelvis was implemented in Visual3Dv5.02.17. CMO/ | + | **Note that this pelvis was implemented in Visual3Dv5.02.17. CMO/ |
==== Pelvis Origin ==== | ==== Pelvis Origin ==== | ||
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**Note that the midpoint of the PSIS markers is the same point as the SACRUM marker used for the Helen Hayes pelvis. Therefore, if a Helen Hayes markers set was used for the motion capture, a V3D_Composite pelvis can be created using the SACRUM marker twice (once for the left PSIS and once for the right PSIS).** | **Note that the midpoint of the PSIS markers is the same point as the SACRUM marker used for the Helen Hayes pelvis. Therefore, if a Helen Hayes markers set was used for the motion capture, a V3D_Composite pelvis can be created using the SACRUM marker twice (once for the left PSIS and once for the right PSIS).** | ||
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The x-axis is defined from the Left ASIS towards the Right ASIS. | The x-axis is defined from the Left ASIS towards the Right ASIS. | ||
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==== Hip Joint Landmarks ==== | ==== Hip Joint Landmarks ==== | ||
- | Estimates for the Right and Left Hip Joint Center are represented as Landmarks that are created automatically when the V3D_Composite pelvis segment is created. The location of the landmark is defined as:\\ | + | Estimates for the Right and Left Hip Joint Center are represented as Landmarks that are created automatically when the V3D_Composite pelvis segment is created.\\ |
- | RHJC=(0.36*ASIS_Distance, | + | The location of the landmark is defined as:\\ |
- | LHJC=(0.36*ASIS_Distance, | + | |
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- | These estimates are adapted from the articles | + | These estimates are adapted from the articles: |
- | **Bell AL, Pederson DR, and Brand RA** (1989) Prediction of hip joint center location from external landmarks. Human Movement Science. 8:3-16:\\ | + | * **Bell AL, Pederson DR, and Brand RA** (1989) Prediction of hip joint center location from external landmarks. Human Movement Science. 8:3-16:\\ |
- | **Bell AL, Pedersen DR, Brand RA** (1990) A Comparison of the Accuracy of Several hip Center Location Prediction Methods. J Biomech. 23, 617-621.\\ | + | |
visual3d/documentation/modeling/segments/v3d_composite_pelvis.1744646069.txt.gz · Last modified: 2025/04/14 15:54 by wikisysop